WASHINGTON — The Obama administration has quietly supplied Israel with bombs capable of destroying buried targets, like terrorists’ arms caches or perhaps sites in Iran suspected of being part of that nation’s nuclear weapons program, U.S. officials said Friday.

George Little, the Pentagon press secretary, declined to comment on the reports of a weapons transfer. “We’re not going to comment on these press reports, but make no mistake about it: the United States is committed to the security of Israel and Israel’s ability to maintain its qualitative military edge,” Little said.